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Cart #stargate-12 | 2022-04-26 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Warning : Just like the original game did, this game's visual effect may cause photosensitive epilepsy for some people. Be careful if you had a hard time playing the original defender or stargate.

This is a port of Eugene Jarvis' legendary title Stargate, a sequel to Defender.

I did my best to make it as faithful as possible but the difficulty is intentionally lower than the original, so it won't be so frustrating.

Protect 10 humanoids from the aliens and prevent the planet destruction. Your new friend, Stargate will help your mission by quickly sending you to the desired area when a humanoid is in danger. By collecting 4 humanoids and getting into stargate, you can warp 3 waves.

Controls :

X : fire laser

Z : Invisto

Z while holding X : Smartbomb

Z when you had ran out of invisto : Hyperspace

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1.1 patch

  • slightly decreased terrain max height.

  • Humanoids and the planet will be restored after passing Firebomber showdown, instead of when starting.

  • Fixed baiter Movement AI.

very good port 👌
sfx work matches the game very well.

one mirror complaint: looks like hitbow for green aliens is a bit small.


This game has pixel perfect collision, the hitbox is exactly same as the sprite.


do you account for player/enemy velocity when calculating the hitbox?


no, I don't. I'll try that.


I tried that but it wasn't a goood idea. it creates an unfair hit detection when the bullet or enemy is moving quite fast.

Also I checked the lander's hitbox against the laser frame by frame and lander's hitbox is not smaller than the sprite, it just looks like because only white part of the player's bullet can impact the enemy.


that must be that - haven’t realized the laser had a ‘start’


1.2 patch

  • Did some optimizations to get extra tokens and added "LANDERS CLEANED" message when you destroyed all landers.

1.3 patch

  • Changed lander spawn time to be more faithful to the original game.(8-7-6-5 seconds)

  • Fixed an error when lander abducted the last humanoid.

You did Defender and Stargate, I did Gorgon. Good portations that deserve to be in featureds. :)


1.5 patch

  • Important sounds (Humanoid kidnapt, bonus life, player's death) are now background musics so they won't be muted easily.

1.6 patch

  • Did some optimizations to prevent slowdowns when the game gets hectic.

1.7 patch

This game is now ported to TIC-80, with all the missing features restored !!!



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